CN100505785C - Foldable portable wireless communication apparatus - Google Patents
Foldable portable wireless communication apparatus Download PDFInfo
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- CN100505785C CN100505785C CNB200610106121XA CN200610106121A CN100505785C CN 100505785 C CN100505785 C CN 100505785C CN B200610106121X A CNB200610106121X A CN B200610106121XA CN 200610106121 A CN200610106121 A CN 200610106121A CN 100505785 C CN100505785 C CN 100505785C
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- housing
- wireless communication
- communication apparatus
- portable wireless
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Abstract
A foldable portable wireless communication apparatus which ensures miniaturization of housing and good antenna characteristic has first casing including transmitter and/or operation section, and second housing including receiver and/or display section and rotatably linked with the first casing through hinge section provided on one end portion of the first housing on the front face side thereof. An antenna board is provided in area at back of the hinge section inside the first housing, and a circuit board having a radio-frequency circuit section mounted thereon is provided in area not overlapping the hinge section inside the first housing. A connection conductor connecting the antenna board and the high frequency wave input/output point of the radio-frequency circuit section is configured into a monopole antenna by setting the direction of extension of the connection conductor in the lengthwise direction of the first housing in the vicinity of the high frequency wave input/output point.
Description
Invention field
The present invention relates to a kind of Foldable portable wireless communication apparatus, relate in particular to a kind of Foldable portable wireless communication apparatus with built-in aerial.
Technical background
Cell phone as Foldable portable wireless communication apparatus becomes very popular now.Have some this cell phones that antenna is included in the shell, that is, they have built-in antenna.
For example, in the open disclosed folding cellular phone of case No.2004-297535 of unexamined Japanese patent application KOKAI, be provided with the fore side housing of microphone microphone, button operation parts etc., exceed hinge member and extend upward, this hinge member is arranged on the end portion of this housing front surface.The structure that this folding cellular phone adopts is: antenna is contained in the zone, and this zone is to the extension of this fore side housing from the below of hinge member.
Because the open disclosed folding cellular phone of case No.2004-297535 of unexamined Japanese patent application KOKAI is contained in antenna the back of hinge member, so, this folding cellular phone can not be subjected to the influence of human body when conversation, and, be very good with regard to the high assembled density of parts.
But, structure for the open disclosed folding cellular phone of case No.2004-297535 of unexamined Japanese patent application KOKAI, when showing side body when fore side is folding, the antenna holding portion of fore side housing exceeds hinge member and projects upwards.Therefore, this folding cellular phone is not preferred at design aspect, and, do not realize enough miniaturizations of housing.
If ledge is not provided, so, when antenna accommodation section part when the longitudinally of housing shortens, built-in aerial holds the length that parts shorten in the amount that longitudinally should shorten corresponding to antenna.Therefore, the shortcoming that does not have the structure of ledge to bring is: the perpendicular polarization at built-in aerial place divides flow gain to reduce.
Summary of the invention
The present invention makes in view of said circumstances, the purpose of this invention is to provide a kind of Foldable portable wireless communication apparatus, with the miniaturization of guaranteeing housing and good antenna performance.
In order to realize this purpose, Foldable portable wireless communication apparatus of the present invention comprises:
First housing one of has in microphone and the operating portion at least;
Second housing one of has in receiver and the display part at least, and is linked at rotationally with described first housing by hinge member, and described hinge member is arranged on the end portion of described first housing, is positioned at its surperficial side;
First antenna element is arranged in the dorsal area of described hinge member in described first housing;
Circuit board is arranged in described first housing and does not cover in the zone of described hinge member, and is equipped with the radio circuit parts above it; And
Bonding conductor, the high frequency waves input/output point of the radio circuit parts on described first antenna element and the described circuit board is coupled together, near along described first housing described high frequency waves input/output point longitudinally extends, and is configured to unipole antenna as second antenna element.
Described bonding conductor constitutes quarter-wave aerial with described first antenna element.
Described bonding conductor and described first antenna element electrical length separately are about 1/8th of communication band medium wavelengths.
Described first antenna element is a wire antenna unit.
Described first antenna element is the unipole antenna of distortion.
Described first antenna element is the flat plane antenna unit that approaches.
Described first antenna element is formed on the printed board.
Described bonding conductor is made of sheet metal.
Described sheet metal is an one by embedding moulding and resin forming.
According to the present invention, needn't on the side part of hinge member, provide ledge, and make housing be able to miniaturization.Because first antenna element is miniaturized the perpendicular polarization of bringing for built-in aerial and divides the flow gain deficiency to be remedied by bonding conductor, thereby improved antenna performance, this bonding conductor is configured to unipole antenna as second antenna element, and the high frequency waves input/output point of the radio circuit parts on described first antenna element and the described circuit board is coupled together.
Description of drawings
By reading following detailed description and accompanying drawing, these purposes of the present invention and other purposes and advantage will become more apparent, wherein:
Fig. 1 be a folding cellular phone under the situation about opening when the front is watched the stereogram of the structure of this folding cellular phone, this folding cellular phone is as using Foldable portable wireless communication apparatus of the present invention according to an embodiment;
Fig. 2 is the exploded perspective view of the folding cellular phone of Fig. 1 of closing when watching from behind, and is the exploded view that takes out under the battery situation;
Fig. 3 is the stereogram under the state of the protecgulum (top shell) that takes out fore side unit (first housing) in Fig. 1 under the open mode, hinge cap, hinged cover, internal module etc.;
Fig. 4 is the illustrative stereogram of the structure of antenna element, shows in Fig. 2 the state of the battery unit that takes out fore side unit (first housing) under the open mode, bonnet (bottom), hinge cap etc.;
The sectional view of Fig. 5 shows the cross section structure of hinge member one side, and shows the zone that hinged cover covered that integrates with the key-top plate;
The sectional view of Fig. 6 shows the cross section structure of hinge member one side, and shows the zone that hinged cover covered that integrates with marking plate;
The stereogram of Fig. 7 A has illustrated the antenna bonding conductor (parts) when the direction identical with Fig. 3 watched;
The stereogram of Fig. 7 B has illustrated the antenna bonding conductor (parts) when the direction identical with Fig. 4 watched; And
The vertical view of Fig. 8 shows the distortion of antenna pattern.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Folding cellular phone shown in Fig. 1 is the state of an embodiment when opening of using Foldable portable wireless communication apparatus of the present invention.First housing 1 and second housing 2 are linked at together each other rotationally by hinge member 3.
As shown in Figure 3, the drain pan 12 that the drain pan 5 of hinge member 3 first housings 1 is provided with carriage 10-10, the second housing 2 is provided with carriage 20-20, and carriage 10-10 and carriage 20-20 link together pivotally by hinge-unit separately.The carriage 10-10 that is positioned at the outside covers with hinge cap 16 separately.Part between the hinge cap 16-16 covers with paired hinged cover 17 and hinged cover 27, paired hinged cover 18 and hinged cover 28, paired hinged cover 19 and hinged cover 29, hinged cover 17 is one with key-top plate 9, hinged cover 27 is installed on the top shell 5 of first housing 1 (referring to Fig. 3), hinged cover 18,19 and marking plate 15 are one, and hinged cover 28,29 is installed on the drain pan 12 of second housing 2 (referring to Fig. 3).
Fig. 2 shows and take out the decomposing state that one side is watched from the back side under battery unit 21 situations when folding cellular phone is closed.The battery accommodating parts 22 that are used to load battery are formed on the drain pan 5 and the bottom 6 of first housing 1.Loud speaker 23, battery add/unload action bars 24, connector cover 25 and antenna cover 26 and fit together with drain pan 5 and bottom 6.
Fig. 3 shows the state that takes out with lower member under the open mode of Fig. 1, the top shell 4 of taking-up marking plate 15, key-top plate 9, hinge cap 16, first housing 1, connector cover 25, internal module etc., wherein marking plate 15 and hinged cover the 18, the 19th, one, key-top plate 9 is one with hinged cover 17.Hinged cover 27 is installed on the drain pan 5 of first housing 1, and hinged cover 28,29 is installed on the drain pan 12 of second housing.Integral body of hinged cover 28,29 common formations.
As shown in the figure, encapsulation groove 31 forms around the drain pan 5 of first housing 1.Hole 32 that FPC uses and antenna are respectively formed at drain pan 5 left side and the right near the end surface of hinge member 3 one sides with hole 33, and it is outstanding with hole 33 from antenna with an end of the antenna bonding conductor 34 in hole 33 to insert exceedingly high line.
Loud speaker coupling component 35 is arranged on the inside of drain pan 5.And its inside is assembled with the vibrator 37 of locking mechanism 36 and trusted notice usefulness, and locking mechanism 36 adds/unload action bars 24 interlocks with battery, thereby fixes battery unit 21 (referring to Fig. 2) under stress state.
FPC is formed on the drain pan 12 of second housing 2 near in the terminal surface of hinge member 3 one sides with hole 38.
The structure of antenna element when Fig. 4 is used to illustrate the bottom 6 of taking battery unit 21, first housing 1 under the closed condition of Fig. 2 away, hinge cap 16, antenna cover 26 etc.
As shown in the figure, the drain pan 5 of first framework 1, along the end portion of hinge member 3 one sides, antenna holds the behind that sunk part 41 is formed on hinge member 3.Sensible this antenna of antenna hole 33 (referring to Fig. 3) holds sunk part 41.Therefore, give prominence in antenna holds sunk part 41 the other end of antenna bonding conductor 34.
As shown in Figure 4, in antenna held sunk part 41, antenna substrate fixed surface 41a was formed on its left side, and the rib 41b that is used for the supporting antenna substrate is formed on its right side.Antenna substrate fixed surface 41a is in identical height with antenna substrate supporting rib 41b, and antenna substrate 43 is assemblied on antenna substrate fixed surface 41a and the antenna substrate supporting rib 41b.
The encapsulation groove 42 be formed on antenna hold sunk part 41 around.Antenna packaging part (waterproof cover) 44 cooperations are installed on the encapsulation groove 42.
As shown in the figure, antenna substrate 43 has the wire antenna that has carried out pattern sweep (meander line) change on rigid substrates (embossing seal system substrate).That is to say, on antenna substrate 43, be formed with the electrode 43a that is used for feed, and be formed with in the left and right sides of feed motor 43a and carried out antenna element 43b, the 43c crooked linearize of pattern, that make by Copper Foil.
In Fig. 4, the antenna element 43b of the crooked linearize in left side is used for communication, and the antenna element 43c of the crooked linearize on the right is used for GPS (global positioning system).Antenna element 43b, 43c are the unipole antennas of distortion.Antenna element 43b, 43c also are the planar monopole antennas that approaches.
Shown in Fig. 7 A, antenna bonding conductor 34 is by with sheet metal 34a molded forming on resin 34b.More particularly, antenna bonding conductor 34 structurally is a mechanograph, promptly by embedding moulding (insert molding) with among the sheet metal 34a embedded resin 34b.
In this embodiment, antenna bonding conductor 34 roughly presents as shown in the figure L shaped, and there is the board side splicing ear 34c (referring to Fig. 7 A) that exposes sheet metal 34a the one end.Shown in Fig. 7 B, aperture 34d be formed on model resin 34b with the relative the other end of board side splicing ear 34c, the part of the sheet metal 34a that exposes among the aperture 34d is antenna substrate side splicing ear 34e.
Introduce below and how to assemble antenna bonding conductor 34 and antenna substrate 43.
Next, antenna substrate 43 is inserted antenna and hold sunk part 41.When spring joint 43d was connected to antenna substrate side splicing ear 34e, antenna element 43b one side of antenna substrate 43 was bonded on the antenna substrate fixed surface 41a by two-sided tape etc.At this moment, antenna substrate supporting rib 41b supports antenna element 43c one side of antenna substrate 43.
Then, the seal lip part 44a around the antenna packaging part 43 being installed to antenna holds in the sunk part 41 encapsulation groove 42 on every side.Antenna packaging part 43 covers antenna and holds sunk part 41, thus waterproof.
Fig. 5 and 6 shows the sectional view of hinge member 3 sides.As illustrated in Figures 5 and 6, this folding cellular phone also has: circuit board 45; Electronic unit 46,47 and 48; Joint 49; Module frame (capsul) 51; Sheet key (sheet key) 52; Key pad (key pad) 53; Contact spring 54; Flexible distributing board (FPC) 55; Tarpaulin 56; Joint 57; With tarpaulin 58.As shown in the figure, the seal lip around the button 53 partly cooperates in the encapsulation groove 31 that embeds drain pan 5.
As shown in Figure 6, in first housing 1 (drain pan 5), the board side splicing ear 34c (referring to Fig. 3 and 7) of antenna bonding conductor 34 is connected to the high frequency waves input/output point of the radio circuit parts that are equipped on circuitry substrate 45 by contact spring 54,, is connected to the distributing point of antenna that is.
As shown in the figure, FPC 55 is arranged in the space of coverings such as hinged cover 17,27.FPC 55 is joined to one another the circuit board in circuit board 45 in first housing 1 (drain pan 5) and second housing 2 (drain pan 12).
That is to say that the end of this FPC is used hole 32, the inside of introducing first housing 1 (drain pan 5) by FPC shown in Figure 5.Joint 57 is arranged on the elongated end of an end of FPC 55, and is connected on the joint 49 on the circuit board 45.Stop up FPC by tarpaulin 56 and use hole 32, tarpaulin 56 is installed integratedly with FPC 55.。
As shown in Figure 6, the other end of FPC 55 is used hole 38 by FPC, extends to the inside of second housing 2 (drain pan 12).Though do not show among the figure that the elongated end of the other end of FPC 55 is provided with joint.The other end of FPC 55 is connected on the circuit board in second housing 2 (drain pan 12) by this joint that does not show.Stop up FPC hole 38 with tarpaulin 58, tarpaulin 58 is installed integratedly with FPC 55.
As mentioned above and as shown in Figs. 4-6, in the present embodiment, antenna substrate 43 is arranged on the behind of hinge member 3.
Antenna on the antenna substrate 43, promptly, wire antenna unit 43b, 43c, be positioned on the antenna substrate 43 on hinge member 3 surface far away (promptly, with hinge member 3 one side opposite surfaces), thereby reduced influence (more particularly, from electromagnetic influence 55 radiation of FPC, that constitute noise) from FPC 55.
Linear antenna unit 43b, 43c on the antenna substrate 43 are connected to the high frequency waves input/output point (distributing point) of the radio circuit parts that are equipped on the circuit board 45 by being semi-conductive antenna bonding conductor 34.
That is to say that shown in Fig. 7 A and 7B, antenna bonding conductor 34 is roughly L-shaped, antenna substrate side splicing ear 34e is arranged on the behind of hinge member 3, and is connected on the spring joint 43d (referring to Fig. 4 and 6) of antenna substrate 43.The board side splicing ear 34c of antenna bonding conductor 34 passes through the antenna that forms and uses hole 33 in spaced walls, enter in first housing 1 (drain pan 5), this spaced walls (hold concurrently and hold the peripheral wall of sunk part 41 for antenna) separates first housing 1 (drain pan 5) of hinge member 3 and containment circuit board 45 etc.Enter the board side splicing ear 34c of the antenna bonding conductor 34 of first housing 1, be connected to the contact spring 54 (referring to Fig. 3 and 6) that is provided with on the circuit board 45.Contact spring 54 is connected on the radio circuit parts that are equipped on circuit board 45, and as the input/output point (distributing point of antenna) of high frequency waves and work.
Adopt this structure, the antenna current of the antenna bonding conductor 34 of flowing through becomes maximum near this distributing point.
In this embodiment, the part of the close distributing point of antenna bonding conductor 34 is configured to unipole antenna, that is, the part of the close distributing point of antenna bonding conductor 34 is provided with according to the mode that the longitudinally (being vertical direction during communication) along housing extends, and with unipole antenna work.The antenna bonding conductor 34 that is configured to unipole antenna mixes with built-in aerial.That is, wire antenna unit 43b, 43c and antenna bonding conductor 34 constitute a hybrid antenna.
Correspondingly, be configured to this part contribution that transmitted and received of unipole antenna to the perpendicular polarization component, thus the gain that has improved the perpendicular polarization component.
In the portable radio communication device such as cell phone, adopt quarter-wave aerial usually, promptly the electrical length in communication band is a quarter-wave.
Therefore, in the present embodiment, the 43b of wire antenna unit on antenna bonding conductor 34 (sheet metal 34a part) and the antenna substrate 43 works together, and becomes quarter-wave aerial.
Correspondingly, the 43b of the unit of the wire antenna on the antenna substrate 43 itself needs not to be quarter-wave.Therefore, antenna substrate 43 is able to miniaturization, even behind enough spaces, hinge member 3 can't be provided on the longitudinally of first housing 1 (drain pan 5), also can hold antenna substrate 43.
So, do not need the part of giving prominence on the hinge member side part, thereby make first housing 1 be able to miniaturization.
Because being the antenna substrate 43 of built-in aerial, the 43b of its wire antenna unit is able to miniaturization, so, reduced the gain of perpendicular polarization component.But the gain of perpendicular polarization component can be replenished by 43b of unit of the wire antenna on the antenna substrate 43 that is miniaturized and antenna bonding conductor 34, and antenna bonding conductor 34 constitutes hybrid antenna, and is configured to unipole antenna.Therefore, the gain of perpendicular polarization component has improved.
The electrical length of wire antenna on the antenna substrate 43 43b (linear antenna that is used to communicate by letter) of unit and antenna bonding conductor 34 all is preferably 1/8th of communication band medium wavelength separately, but also can work well for eight/a period of time being approximately.For example, even if the electrical length of unipole antenna part in communication band less than eight of wavelength/, also can transmit and receive the perpendicular polarization component well once approximately be 1/8th.That is to say, improve the gain of perpendicular polarization component.
In the present embodiment, adopted vibrator 37 has been arranged near the antenna bonding conductor 34 structure, as shown in Figure 3, but, the influence that vibrator 37 produces (more particularly, when vibrator 37 work, from electromagnetic influence 37 radiation of vibrator, that constitute noise) has been minimized, this is because antenna bonding conductor 34 is to the direction bending away from vibrator 37.
Though do not show among the figure, but, in the sheet metal 34a of antenna bonding conductor 34, with antenna substrate side splicing ear 34e and board side splicing ear 34c joined portions, promptly, along the sheet metal 34a part that the longitudinally of first housing 1 (drain pan 5) extends, molded and shaped as follows: as to be arranged on a side away from vibrator 37.Owing to adopted this structure, antenna bonding conductor 34 also is difficult to be subjected to the influence of vibrator 37.
As shown in Figure 4, the antenna substrate side splicing ear 34e of antenna bonding conductor 34 is arranged on the behind of hinge member 3, and according to being provided with near the mode of spaced walls, this spaced walls is with the internal interval of hinge member 3 and first housing 1 (drain pan 5), so can not be subjected to the influence of FPC55.
Fig. 8 shows the distortion of antenna pattern.
As shown in the figure, antenna substrate 61 is made by forming wire antenna unit 61b, 61c, and wire antenna unit 61b, 61c carry out pattern processing to the Copper Foil that extends to the outside and middle part from feed electrode 61a and make.
In the figure, the outside thick wire antenna 61b of unit extends from the left side around antenna substrate 61, is used for communication.The middle thin wire antenna 61c of unit extends to linearity ground, the left side, is used for GPS. Linear antenna unit 61b, 61c are the unipole antennas of distortion.
Though do not show among the figure, antenna substrate 61 itself is with spring joint, and it reaches an opposite side from feed electrode 61a.
In the aforementioned embodiment, given description is at the situation that cell phone is used as the Foldable portable wireless communication apparatus example, but the invention is not restricted to this situation, also can be used for laptop computer, PDA (personal digital assistant) and have other portable radio communication devices of radio communication function.
A kind of portable radio communication device can be as follows: first housing has a microphone at least, and second housing has a receiver; Perhaps, first housing has a functional unit, and second housing has a display unit.
In the present embodiment, although the situation that will be made of the antenna bonding conductor resin molded sheet metal as an example, also can use molded sheet metal of non-resin or metal wire.
The shape etc. that is arranged on the antenna of hinge member back is arbitrarily, let alone be that other details and structure also can appropriate changes.For example, the antenna that is arranged on the hinge member back can be a wire antenna, also can be the wire antenna (as helical antenna) that is Any shape, along the antenna of foil bending, and, be formed on the antenna pattern on the flexible board rather than on the rigid substrates.If on flexible board, form antenna, then can form the electric conducting material that antenna pattern is connected with distributing point with copper foil pattern with Copper Foil.
Under the situation that does not break away from broader spirit of the present invention and protection range, can make various embodiment and variation.The foregoing description only is used to illustrate the present invention, and unrestricted protection scope of the present invention.Protection scope of the present invention by appending claims but not embodiment decide.At claims of the present invention and be equal to the various modifications of making in the scope of the meaning and all should be considered as falling into protection scope of the present invention.
The application requires the priority of Japanese patent application No.2005-211695 that submitted to July 21 in 2005 and the Japanese patent application No.2006-88117 that submitted to March 28 in 2006, and the application is incorporated in two pieces of applications of back in full into.
Claims (9)
1, a kind of Foldable portable wireless communication apparatus comprises:
First housing one of has in microphone and the operating portion at least;
Second housing one of has in receiver and the display part at least, and is linked at rotationally with described first housing by hinge member, and described hinge member is arranged on the end portion of described first housing, is positioned at its surperficial side;
First antenna element is arranged in the zone in described first housing, and this zone is at the back side of described hinge member;
Circuit board, be arranged in described first housing not with an overlapping zone of described hinge member in, and be equipped with the radio circuit parts above it; And
Bonding conductor, the high frequency waves input/output point of the radio circuit parts on described first antenna element and the described circuit board is coupled together, near along described first housing described high frequency waves input/output point longitudinally extends, and is configured to unipole antenna as second antenna element.
2, according to the described Foldable portable wireless communication apparatus of claim 1, wherein, described bonding conductor constitutes quarter-wave aerial with described first antenna element.
3, according to the described Foldable portable wireless communication apparatus of claim 1, wherein, described bonding conductor and described first antenna element electrical length separately are about 1/8th of communication band medium wavelengths.
4, according to the described Foldable portable wireless communication apparatus of claim 1, wherein, described first antenna element is a wire antenna unit.
5, according to the described Foldable portable wireless communication apparatus of claim 1, wherein, described first antenna element is the unipole antenna of crooked linearize.
6, according to the described Foldable portable wireless communication apparatus of claim 1, wherein, described first antenna element is the flat plane antenna unit that approaches.
7, according to the described Foldable portable wireless communication apparatus of claim 1, wherein, described first antenna element is formed on the printed board.
8, according to the described Foldable portable wireless communication apparatus of claim 1, wherein, described bonding conductor is made of sheet metal.
9, according to the described Foldable portable wireless communication apparatus of claim 8, wherein, described sheet metal is an one by embedding moulding and resin forming.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005211695 | 2005-07-21 | ||
| JP211695/2005 | 2005-07-21 | ||
| JP088117/2006 | 2006-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1901560A CN1901560A (en) | 2007-01-24 |
| CN100505785C true CN100505785C (en) | 2009-06-24 |
Family
ID=37657297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610106121XA Expired - Fee Related CN100505785C (en) | 2005-07-21 | 2006-07-20 | Foldable portable wireless communication apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100505785C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411873A (en) * | 2017-08-17 | 2019-03-01 | Lg电子株式会社 | Electronic device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5565858B2 (en) * | 2010-04-26 | 2014-08-06 | Ｎｅｃカシオモバイルコミュニケーションズ株式会社 | Mobile communication terminal |
| CN107919527B (en) * | 2017-11-07 | 2020-06-16 | 电连技术股份有限公司 | Antenna device and terminal equipment |
| CN110392151B (en) * | 2019-08-16 | 2021-02-26 | 重庆蓝岸通讯技术有限公司 | Flip phone capable of improving antenna performance |
-
2006
- 2006-07-20 CN CNB200610106121XA patent/CN100505785C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411873A (en) * | 2017-08-17 | 2019-03-01 | Lg电子株式会社 | Electronic device |
| CN109411873B (en) * | 2017-08-17 | 2021-05-11 | Lg电子株式会社 | Electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1901560A (en) | 2007-01-24 |
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